Today we will see an introduction to a very interesting library for PHP called ReactPHP. This is a low-level library based on events and non-blocking I/O

In this post, we will see how to prevent XSS attacks, we will see how to partially avoid attacks of this nature on the Front-End, and we will see what we must do on the Back-End side.

CSP stands for Content Security Policy. It is an additional layer of security. In this case, we will see how to apply CSP in PHP.

In PHP, declare is a constructor, and its usage differs greatly from the control structures we are accustomed to. This constructor is used to set execution directives for a block of code.

Today we will explore this new control structure in PHP called match. We have already seen if and switch, and now we will look at a structure similar to these.